Case study – 100% Caribbean Solar Power x
For one project in the Caribbean, the SMA team went one step further. The local electric utility company on St. Eustatius, Stuco, was so delighted with the first expansion stage of the solar hybrid system that it was determined to expand on it, to the extent that the diesel generators could be completely turned off as much as possible during the day. In doing so, the SMA engineers transferred the grid-forming properties of the Sunny Island to its big brother and developed the Sunny Central Storage 22002750-EV.
Despite the somewhat higher initial investment costs, the solar hybrid systems pay for themselves within just a few years in comparison with the high operating costs of pure diesel systems. The costs for diesel fuel are minimized. Not to mention the transport costs for the fuel. After all, while it first takes substantial effort to organize transport from afar, the sun has long since done its job completely free of charge. Maintenance costs also fall considerably while service life increases. That is because, thanks to their low-maintenance parts, hybrid systems are far superior to diesel units in terms of service life.